class FrigateApp():
def __init__(self):
self.stop_event = mp.Event()
self.config: FrigateConfig = None
self.detection_queue = mp.Queue()
self.detectors: Dict[str, EdgeTPUProcess] = {}
self.detection_out_events: Dict[str, mp.Event] = {}
self.detection_shms: List[mp.shared_memory.SharedMemory] = []
self.log_queue = mp.Queue()
self.camera_metrics = {}
def set_environment_vars(self):
for key, value in self.config.environment_vars.items():
os.environ[key] = value
def ensure_dirs(self):
for d in [RECORD_DIR, CLIPS_DIR, CACHE_DIR]:
if not os.path.exists(d) and not os.path.islink(d):
logger.info(f"Creating directory: {d}")
os.makedirs(d)
else:
logger.debug(f"Skipping directory: {d}")
tmpfs_size = self.config.clips.tmpfs_cache_size
if tmpfs_size:
logger.info(f"Creating tmpfs of size {tmpfs_size}")
rc = os.system(
f"mount -t tmpfs -o size={tmpfs_size} tmpfs {CACHE_DIR}")
if rc != 0:
logger.error(f"Failed to create tmpfs, error code: {rc}")
def init_logger(self):
self.log_process = mp.Process(target=log_process,
args=(self.log_queue, ),
name='log_process')
self.log_process.daemon = True
self.log_process.start()
root_configurer(self.log_queue)
def init_config(self):
config_file = os.environ.get('CONFIG_FILE', '/config/config.yml')
self.config = FrigateConfig(config_file=config_file)
for camera_name in self.config.cameras.keys():
# create camera_metrics
self.camera_metrics[camera_name] = {
'camera_fps':
mp.Value('d', 0.0),
'skipped_fps':
mp.Value('d', 0.0),
'process_fps':
mp.Value('d', 0.0),
'detection_enabled':
mp.Value('i', self.config.cameras[camera_name].detect.enabled),
'detection_fps':
mp.Value('d', 0.0),
'detection_frame':
mp.Value('d', 0.0),
'read_start':
mp.Value('d', 0.0),
'ffmpeg_pid':
mp.Value('i', 0),
'frame_queue':
mp.Queue(maxsize=2),
}
def check_config(self):
for name, camera in self.config.cameras.items():
assigned_roles = list(
set([r for i in camera.ffmpeg.inputs for r in i.roles]))
if not camera.clips.enabled and 'clips' in assigned_roles:
logger.warning(
f"Camera {name} has clips assigned to an input, but clips is not enabled."
)
elif camera.clips.enabled and not 'clips' in assigned_roles:
logger.warning(
f"Camera {name} has clips enabled, but clips is not assigned to an input."
)
if not camera.record.enabled and 'record' in assigned_roles:
logger.warning(
f"Camera {name} has record assigned to an input, but record is not enabled."
)
elif camera.record.enabled and not 'record' in assigned_roles:
logger.warning(
f"Camera {name} has record enabled, but record is not assigned to an input."
)
if not camera.rtmp.enabled and 'rtmp' in assigned_roles:
logger.warning(
f"Camera {name} has rtmp assigned to an input, but rtmp is not enabled."
)
elif camera.rtmp.enabled and not 'rtmp' in assigned_roles:
logger.warning(
f"Camera {name} has rtmp enabled, but rtmp is not assigned to an input."
)
def set_log_levels(self):
logging.getLogger().setLevel(self.config.logger.default)
for log, level in self.config.logger.logs.items():
logging.getLogger(log).setLevel(level)
if not 'geventwebsocket.handler' in self.config.logger.logs:
logging.getLogger('geventwebsocket.handler').setLevel('ERROR')
def init_queues(self):
# Queues for clip processing
self.event_queue = mp.Queue()
self.event_processed_queue = mp.Queue()
# Queue for cameras to push tracked objects to
self.detected_frames_queue = mp.Queue(
maxsize=len(self.config.cameras.keys()) * 2)
def init_database(self):
migrate_db = SqliteExtDatabase(self.config.database.path)
# Run migrations
del (logging.getLogger('peewee_migrate').handlers[:])
router = Router(migrate_db)
router.run()
migrate_db.close()
self.db = SqliteQueueDatabase(self.config.database.path)
models = [Event]
self.db.bind(models)
def init_stats(self):
self.stats_tracking = stats_init(self.camera_metrics, self.detectors)
def init_web_server(self):
self.flask_app = create_app(self.config, self.db, self.stats_tracking,
self.detected_frames_processor,
self.mqtt_client)
def init_mqtt(self):
self.mqtt_client = create_mqtt_client(self.config, self.camera_metrics)
def start_detectors(self):
model_shape = (self.config.model.height, self.config.model.width)
for name in self.config.cameras.keys():
self.detection_out_events[name] = mp.Event()
try:
self.detection_shms.append(
mp.shared_memory.SharedMemory(
name=name,
create=True,
size=self.config.model.height *
self.config.model.width * 3))
except FileExistsError:
self.detection_shms.append(
mp.shared_memory.SharedMemory(name=name))
try:
self.detection_shms.append(
mp.shared_memory.SharedMemory(name=f"out-{name}",
create=True,
size=20 * 6 * 4))
except FileExistsError:
self.detection_shms.append(
mp.shared_memory.SharedMemory(name=f"out-{name}"))
for name, detector in self.config.detectors.items():
if detector.type == 'cpu':
self.detectors[name] = EdgeTPUProcess(
name, self.detection_queue, self.detection_out_events,
model_shape, 'cpu', detector.num_threads)
if detector.type == 'edgetpu':
self.detectors[name] = EdgeTPUProcess(
name, self.detection_queue, self.detection_out_events,
model_shape, detector.device, detector.num_threads)
def start_detected_frames_processor(self):
self.detected_frames_processor = TrackedObjectProcessor(
self.config, self.mqtt_client, self.config.mqtt.topic_prefix,
self.detected_frames_queue, self.event_queue,
self.event_processed_queue, self.stop_event)
self.detected_frames_processor.start()
def start_camera_processors(self):
model_shape = (self.config.model.height, self.config.model.width)
for name, config in self.config.cameras.items():
camera_process = mp.Process(
target=track_camera,
name=f"camera_processor:{name}",
args=(name, config, model_shape, self.detection_queue,
self.detection_out_events[name],
self.detected_frames_queue, self.camera_metrics[name]))
camera_process.daemon = True
self.camera_metrics[name]['process'] = camera_process
camera_process.start()
logger.info(
f"Camera processor started for {name}: {camera_process.pid}")
def start_camera_capture_processes(self):
for name, config in self.config.cameras.items():
capture_process = mp.Process(target=capture_camera,
name=f"camera_capture:{name}",
args=(name, config,
self.camera_metrics[name]))
capture_process.daemon = True
self.camera_metrics[name]['capture_process'] = capture_process
capture_process.start()
logger.info(
f"Capture process started for {name}: {capture_process.pid}")
def start_event_processor(self):
self.event_processor = EventProcessor(self.config, self.camera_metrics,
self.event_queue,
self.event_processed_queue,
self.stop_event)
self.event_processor.start()
def start_event_cleanup(self):
self.event_cleanup = EventCleanup(self.config, self.stop_event)
self.event_cleanup.start()
def start_recording_maintainer(self):
self.recording_maintainer = RecordingMaintainer(
self.config, self.stop_event)
self.recording_maintainer.start()
def start_stats_emitter(self):
self.stats_emitter = StatsEmitter(self.config, self.stats_tracking,
self.mqtt_client,
self.config.mqtt.topic_prefix,
self.stop_event)
self.stats_emitter.start()
def start_watchdog(self):
self.frigate_watchdog = FrigateWatchdog(self.detectors,
self.stop_event)
self.frigate_watchdog.start()
def start(self):
self.init_logger()
try:
try:
self.init_config()
except Exception as e:
print(f"Error parsing config: {e}")
self.log_process.terminate()
sys.exit(1)
self.set_environment_vars()
self.ensure_dirs()
self.check_config()
self.set_log_levels()
self.init_queues()
self.init_database()
self.init_mqtt()
except Exception as e:
print(e)
self.log_process.terminate()
sys.exit(1)
self.start_detectors()
self.start_detected_frames_processor()
self.start_camera_processors()
self.start_camera_capture_processes()
self.init_stats()
self.init_web_server()
self.start_event_processor()
self.start_event_cleanup()
self.start_recording_maintainer()
self.start_stats_emitter()
self.start_watchdog()
# self.zeroconf = broadcast_zeroconf(self.config.mqtt.client_id)
def receiveSignal(signalNumber, frame):
self.stop()
sys.exit()
signal.signal(signal.SIGTERM, receiveSignal)
server = pywsgi.WSGIServer(('127.0.0.1', 5001),
self.flask_app,
handler_class=WebSocketHandler)
server.serve_forever()
self.stop()
def stop(self):
logger.info(f"Stopping...")
self.stop_event.set()
self.detected_frames_processor.join()
self.event_processor.join()
self.event_cleanup.join()
self.recording_maintainer.join()
self.stats_emitter.join()
self.frigate_watchdog.join()
self.db.stop()
for detector in self.detectors.values():
detector.stop()
while len(self.detection_shms) > 0:
shm = self.detection_shms.pop()
shm.close()
shm.unlink()
class FrigateApp:
def __init__(self):
self.stop_event = mp.Event()
self.base_config: FrigateConfig = None
self.config: FrigateConfig = None
self.detection_queue = mp.Queue()
self.detectors: Dict[str, EdgeTPUProcess] = {}
self.detection_out_events: Dict[str, mp.Event] = {}
self.detection_shms: List[mp.shared_memory.SharedMemory] = []
self.log_queue = mp.Queue()
self.camera_metrics = {}
def set_environment_vars(self):
for key, value in self.config.environment_vars.items():
os.environ[key] = value
def ensure_dirs(self):
for d in [RECORD_DIR, CLIPS_DIR, CACHE_DIR]:
if not os.path.exists(d) and not os.path.islink(d):
logger.info(f"Creating directory: {d}")
os.makedirs(d)
else:
logger.debug(f"Skipping directory: {d}")
def init_logger(self):
self.log_process = mp.Process(
target=log_process, args=(self.log_queue,), name="log_process"
)
self.log_process.daemon = True
self.log_process.start()
root_configurer(self.log_queue)
def init_config(self):
config_file = os.environ.get("CONFIG_FILE", "/config/config.yml")
user_config = FrigateConfig.parse_file(config_file)
self.config = user_config.runtime_config
for camera_name in self.config.cameras.keys():
# create camera_metrics
self.camera_metrics[camera_name] = {
"camera_fps": mp.Value("d", 0.0),
"skipped_fps": mp.Value("d", 0.0),
"process_fps": mp.Value("d", 0.0),
"detection_enabled": mp.Value(
"i", self.config.cameras[camera_name].detect.enabled
),
"detection_fps": mp.Value("d", 0.0),
"detection_frame": mp.Value("d", 0.0),
"read_start": mp.Value("d", 0.0),
"ffmpeg_pid": mp.Value("i", 0),
"frame_queue": mp.Queue(maxsize=2),
}
def set_log_levels(self):
logging.getLogger().setLevel(self.config.logger.default.value.upper())
for log, level in self.config.logger.logs.items():
logging.getLogger(log).setLevel(level.value.upper())
if not "werkzeug" in self.config.logger.logs:
logging.getLogger("werkzeug").setLevel("ERROR")
def init_queues(self):
# Queues for clip processing
self.event_queue = mp.Queue()
self.event_processed_queue = mp.Queue()
self.video_output_queue = mp.Queue(maxsize=len(self.config.cameras.keys()) * 2)
# Queue for cameras to push tracked objects to
self.detected_frames_queue = mp.Queue(
maxsize=len(self.config.cameras.keys()) * 2
)
def init_database(self):
# Migrate DB location
old_db_path = os.path.join(CLIPS_DIR, "frigate.db")
if not os.path.isfile(self.config.database.path) and os.path.isfile(
old_db_path
):
os.rename(old_db_path, self.config.database.path)
# Migrate DB schema
migrate_db = SqliteExtDatabase(self.config.database.path)
# Run migrations
del logging.getLogger("peewee_migrate").handlers[:]
router = Router(migrate_db)
router.run()
migrate_db.close()
self.db = SqliteQueueDatabase(self.config.database.path)
models = [Event, Recordings]
self.db.bind(models)
def init_stats(self):
self.stats_tracking = stats_init(self.camera_metrics, self.detectors)
def init_web_server(self):
self.flask_app = create_app(
self.config,
self.db,
self.stats_tracking,
self.detected_frames_processor,
)
def init_mqtt(self):
self.mqtt_client = create_mqtt_client(self.config, self.camera_metrics)
def start_mqtt_relay(self):
self.mqtt_relay = MqttSocketRelay(
self.mqtt_client, self.config.mqtt.topic_prefix
)
self.mqtt_relay.start()
def start_detectors(self):
model_path = self.config.model.path
model_shape = (self.config.model.height, self.config.model.width)
for name in self.config.cameras.keys():
self.detection_out_events[name] = mp.Event()
try:
shm_in = mp.shared_memory.SharedMemory(
name=name,
create=True,
size=self.config.model.height * self.config.model.width * 3,
)
except FileExistsError:
shm_in = mp.shared_memory.SharedMemory(name=name)
try:
shm_out = mp.shared_memory.SharedMemory(
name=f"out-{name}", create=True, size=20 * 6 * 4
)
except FileExistsError:
shm_out = mp.shared_memory.SharedMemory(name=f"out-{name}")
self.detection_shms.append(shm_in)
self.detection_shms.append(shm_out)
for name, detector in self.config.detectors.items():
if detector.type == DetectorTypeEnum.cpu:
self.detectors[name] = EdgeTPUProcess(
name,
self.detection_queue,
self.detection_out_events,
model_path,
model_shape,
"cpu",
detector.num_threads,
)
if detector.type == DetectorTypeEnum.edgetpu:
self.detectors[name] = EdgeTPUProcess(
name,
self.detection_queue,
self.detection_out_events,
model_path,
model_shape,
detector.device,
detector.num_threads,
)
def start_detected_frames_processor(self):
self.detected_frames_processor = TrackedObjectProcessor(
self.config,
self.mqtt_client,
self.config.mqtt.topic_prefix,
self.detected_frames_queue,
self.event_queue,
self.event_processed_queue,
self.video_output_queue,
self.stop_event,
)
self.detected_frames_processor.start()
def start_video_output_processor(self):
output_processor = mp.Process(
target=output_frames,
name=f"output_processor",
args=(
self.config,
self.video_output_queue,
),
)
output_processor.daemon = True
self.output_processor = output_processor
output_processor.start()
logger.info(f"Output process started: {output_processor.pid}")
def start_camera_processors(self):
model_shape = (self.config.model.height, self.config.model.width)
for name, config in self.config.cameras.items():
camera_process = mp.Process(
target=track_camera,
name=f"camera_processor:{name}",
args=(
name,
config,
model_shape,
self.config.model.merged_labelmap,
self.detection_queue,
self.detection_out_events[name],
self.detected_frames_queue,
self.camera_metrics[name],
),
)
camera_process.daemon = True
self.camera_metrics[name]["process"] = camera_process
camera_process.start()
logger.info(f"Camera processor started for {name}: {camera_process.pid}")
def start_camera_capture_processes(self):
for name, config in self.config.cameras.items():
capture_process = mp.Process(
target=capture_camera,
name=f"camera_capture:{name}",
args=(name, config, self.camera_metrics[name]),
)
capture_process.daemon = True
self.camera_metrics[name]["capture_process"] = capture_process
capture_process.start()
logger.info(f"Capture process started for {name}: {capture_process.pid}")
def start_event_processor(self):
self.event_processor = EventProcessor(
self.config,
self.camera_metrics,
self.event_queue,
self.event_processed_queue,
self.stop_event,
)
self.event_processor.start()
def start_event_cleanup(self):
self.event_cleanup = EventCleanup(self.config, self.stop_event)
self.event_cleanup.start()
def start_recording_maintainer(self):
self.recording_maintainer = RecordingMaintainer(self.config, self.stop_event)
self.recording_maintainer.start()
def start_recording_cleanup(self):
self.recording_cleanup = RecordingCleanup(self.config, self.stop_event)
self.recording_cleanup.start()
def start_stats_emitter(self):
self.stats_emitter = StatsEmitter(
self.config,
self.stats_tracking,
self.mqtt_client,
self.config.mqtt.topic_prefix,
self.stop_event,
)
self.stats_emitter.start()
def start_watchdog(self):
self.frigate_watchdog = FrigateWatchdog(self.detectors, self.stop_event)
self.frigate_watchdog.start()
def start(self):
self.init_logger()
logger.info(f"Starting Frigate ({VERSION})")
try:
try:
self.init_config()
except Exception as e:
print("*************************************************************")
print("*************************************************************")
print("*** Your config file is not valid! ***")
print("*** Please check the docs at ***")
print("*** https://docs.frigate.video/configuration/index ***")
print("*************************************************************")
print("*************************************************************")
print("*** Config Validation Errors ***")
print("*************************************************************")
print(e)
print("*************************************************************")
print("*** End Config Validation Errors ***")
print("*************************************************************")
self.log_process.terminate()
sys.exit(1)
self.set_environment_vars()
self.ensure_dirs()
self.set_log_levels()
self.init_queues()
self.init_database()
self.init_mqtt()
except Exception as e:
print(e)
self.log_process.terminate()
sys.exit(1)
self.start_detectors()
self.start_video_output_processor()
self.start_detected_frames_processor()
self.start_camera_processors()
self.start_camera_capture_processes()
self.init_stats()
self.init_web_server()
self.start_mqtt_relay()
self.start_event_processor()
self.start_event_cleanup()
self.start_recording_maintainer()
self.start_recording_cleanup()
self.start_stats_emitter()
self.start_watchdog()
# self.zeroconf = broadcast_zeroconf(self.config.mqtt.client_id)
def receiveSignal(signalNumber, frame):
self.stop()
sys.exit()
signal.signal(signal.SIGTERM, receiveSignal)
try:
self.flask_app.run(host="127.0.0.1", port=5001, debug=False)
except KeyboardInterrupt:
pass
self.stop()
def stop(self):
logger.info(f"Stopping...")
self.stop_event.set()
self.mqtt_relay.stop()
self.detected_frames_processor.join()
self.event_processor.join()
self.event_cleanup.join()
self.recording_maintainer.join()
self.recording_cleanup.join()
self.stats_emitter.join()
self.frigate_watchdog.join()
self.db.stop()
for detector in self.detectors.values():
detector.stop()
while len(self.detection_shms) > 0:
shm = self.detection_shms.pop()
shm.close()
shm.unlink()